>>214397894
Conquistador era wine would taste like vinegar today
>>214398332
Of course, the ancients knew the Earth was a globe. We've known for thousands of years. You only need to watch a ship sailing into the distance to see it disappear over the horizon in a way that means the surface of the earth is curved.
The first Iberians to go into the Atlantic, the Portugese, did it in order to try and attack the Holy Land from the rear, as a continuation of the crusades. Afterwards it was about finding a route to Asia - because everyone knew the Earth was a globe - it was obvious to the people of the middle ages/renaissance that if you sailed west into the Atlantic you'd arrive in the Orient.